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27
LC-15AV6U
Check all output voltage
line for short or open
circuit.
Is T7702 secondary
output at C7734, C7735
voltage normal?
Check the voltage at
C734, C735, C754 and
C750 are normal.
Check the primary side
of IC7001, IC702, IC706
and IC705 their
peripheral circuit.
Is F7701 specified?
And be function?
Disconnect F6700 or
F6702 Is the load
short-circuited?
Are F6700 and F6702
as specified?
Are there DC 18V input
at F6700 and F6702?
Is the pin (187) of
IC801 in "H" state?
No video and audio output (No po
wer)
No fluorescent lamp light-up
Yes
Yes
No
No
No
No
No
No
No
No
Is Q7751 base v
oltage at
"L" state?
Replace F7701.
Accord specified.
Remove F7701 and
check the load side. Is
there any short-circuit in
T7702 primary side and
periphery?
Yes
Yes
Are the outputs of
Q5001 in the "L" state?
Yes
Are the waveform of pins
(2) and (4) of T6700-
T6704 normal?
Yes
Is the waveform of pin
(10) of T6700-T6704
normal?
Yes
Check the error amp
circuit
D6700, D6701, D6702,
D6703, D6704, D6705,
Yes
Check IC7701/T7702
and its peripheral
parts.
Check the OFL 1/2
line, IC801 and its
peripheral parts.
Check the OFL line,
Q5001 and its
peripheral parts.
Check Q6700-Q6702,
Q6702-Q6709 and its
peripheral parts.
Replace the backlight
lamp with new one
and check again.
Check Q6700-Q6702,
Q6702-Q6709 and its
peripheral parts.
Yes
Yes
Check IC7701 and its
peripheral parts.
No
No
D6707, D6708, D6709,
D6710, D6711 and their
peripheral parts.
TROUBLESHOOTING TABLE
No TV Color
Check the output of IC801 and its
peripheral circuits.
Make sure the microprocessor's adjustment process menu settings are as specified.
No Video Color
No S Video Color
No Component Color
No Color
Check the line between pin (8) of
SC5202 and pin (31) of IC801.
Check the line between pin (3), (4) of
SC5202 and pin (21), (33) of IC801.
Check all output voltage
line for short or open
circuit.
Is T7702 secondary
output at C7734, C7735
voltage normal?
Check the voltage at
C734, C735, C754 and
C750 are normal.
Check the primary side
of IC7001, IC702, IC706
and IC705 their
peripheral circuit.
Is F7701 specified?
And be function?
No video and audio output (No po
wer)
Yes
Yes
No
Is Q7751 base v
oltage at
"L" state?
Replace F7701.
Accord specified.
Remove F7701 and
check the load side. Is
there any short-circuit in
T7702 primary side and
periphery?
Yes
Yes
Check IC7701 and its
peripheral parts.
No
No
Содержание AQUOS LC-15S5U
Страница 8: ...8 LC 15AV6U DIMENSIONS Unit inch mm ...
Страница 34: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 34 LC 15AV6U OVERALL WIRING DIAGRAM ...
Страница 35: ...17 16 19 18 15 14 13 12 11 10 35 LC 15AV6U ...
Страница 37: ...6 5 4 3 2 1 A B C D E F G H 37 LC 15AV6U SCHEMATIC DIAGRAM ËLED HP Unit LED ...
Страница 38: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 38 LC 15AV6U ËMAIN Unit 1 7 MAIN1 MICON ...
Страница 39: ...17 16 19 18 15 14 13 12 11 10 39 LC 15AV6U ...
Страница 40: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 40 LC 15AV6U ËMAIN Unit 2 7 MAIN2 DVP ...
Страница 41: ...17 16 19 18 15 14 13 12 11 10 41 LC 15AV6U ...
Страница 42: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 42 LC 15AV6U ËMAIN Unit 3 7 MAIN3 DOT_GRAD ...
Страница 43: ...17 16 19 18 15 14 13 12 11 10 43 LC 15AV6U GRAD ...
Страница 44: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 44 LC 15AV6U ËMAIN Unit 4 7 MAIN5 RSDS ...
Страница 45: ...17 16 19 18 15 14 13 12 11 10 45 LC 15AV6U ...
Страница 46: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 46 LC 15AV6U ËMAIN Unit 5 7 MAIN6 INTERFACE ...
Страница 47: ...17 16 19 18 15 14 13 12 11 10 47 LC 15AV6U ...
Страница 48: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 48 LC 15AV6U ËMAIN Unit 6 7 MAIN7 DC DC ...
Страница 49: ...17 16 19 18 15 14 13 12 11 10 49 LC 15AV6U ...
Страница 50: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 50 LC 15AV6U ËMAIN Unit 7 7 MAIN9 MSP ...
Страница 51: ...17 16 19 18 15 14 13 12 11 10 51 LC 15AV6U ...
Страница 52: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 52 LC 15AV6U ËSUB Unit 1 7 SUB1 TUNER INPUT ...
Страница 53: ...17 16 19 18 15 14 13 12 11 10 53 LC 15AV6U ...
Страница 54: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 54 LC 15AV6U ËSUB Unit 2 7 SUB2 SOUND ...
Страница 55: ...17 16 19 18 15 14 13 12 11 10 55 LC 15AV6U ...
Страница 56: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 56 LC 15AV6U ËSUB Unit 3 7 SUB3 AC DC ...
Страница 57: ...17 16 19 18 15 14 13 12 11 10 57 LC 15AV6U C ...
Страница 58: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 58 LC 15AV6U ËSUB Unit 4 7 SUB4 DCDC CONVERTER ...
Страница 59: ...17 16 19 18 15 14 13 12 11 10 59 LC 15AV6U ...
Страница 60: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 60 LC 15AV6U ËSUB Unit 5 7 SUB5 CONTROL ...
Страница 61: ...17 16 19 18 15 14 13 12 11 10 61 LC 15AV6U ...
Страница 62: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 62 LC 15AV6U ËSUB Unit 6 7 SUB6 INTERFACE ...
Страница 63: ...17 16 19 18 15 14 13 12 11 10 63 LC 15AV6U ...
Страница 64: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 64 LC 15AV6U ËSUB Unit 7 7 SUB7 ...
Страница 65: ...17 16 19 18 15 14 13 12 11 10 65 LC 15AV6U ...
Страница 68: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 68 LC 15AV6U MAIN Unit Side A ...
Страница 69: ...17 16 19 18 15 14 13 12 11 10 69 LC 15AV6U ...
Страница 70: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 70 LC 15AV6U MAIN Unit Chip Parts Side A ...
Страница 71: ...17 16 19 18 15 14 13 12 11 10 71 LC 15AV6U ...
Страница 72: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 72 LC 15AV6U MAIN Unit Side B ...
Страница 73: ...17 16 19 18 15 14 13 12 11 10 73 LC 15AV6U ...
Страница 74: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 74 LC 15AV6U MAIN Unit Chip Parts Side B ...
Страница 75: ...17 16 19 18 15 14 13 12 11 10 75 LC 15AV6U ...
Страница 76: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 76 LC 15AV6U SUB Unit Wiring Side QPWBFD674WJN1 ...
Страница 77: ...17 16 19 18 15 14 13 12 11 10 77 LC 15AV6U ...
Страница 91: ...91 LC 15AV6U PACKING OF THE SET X1 X5 S2 X2 S3 S3 S1 X3 X4 S4 S5 ...